Navigation Links
'Nanoscoops' could spark new generation of electric automobile batteries
Date:1/4/2011

ise driving and other operations. Koratkar said the invention of nanoscoops may enable these two separate systems to be combined into a single, more efficient battery unit.

Results of the study were detailed in the paper "Functionally Strain-Graded Nanoscoops for High Power Li-Ion Battery Anodes," published Thursday by the journal Nano Letters. See the full paper at: http://pubs.acs.org/doi/abs/10.1021/nl102981d

The anode structure of a Li-ion battery physically grows and shrinks as the battery charges or discharges. When charging, the addition of Li ions increases the volume of the anode, while discharging has the opposite effect. These volume changes result in a buildup of stress in the anode. Too great a stress that builds up too quickly, as in the case of a battery charging or discharging at high speeds, can cause the battery to fail prematurely. This is why most batteries in today's portable electronic devices like cell phones and laptops charge very slowly the slow charge rate is intentional and designed to protect the battery from stress-induced damage.

The Rensselaer team's nanoscoop, however, was engineered to withstand this buildup of stress. Made from a carbon (C) nanorod base topped with a thin layer of nanoscale aluminum (Al) and a "scoop" of nanoscale silicon (Si), the structures are flexible and able to quickly accept and discharge Li ions at extremely fast rates without sustaining significant damage. The segmented structure of the nanoscoop allows the strain to be gradually transferred from the C base to the Al layer, and finally to the Si scoop. This natural strain gradation provides for a less abrupt transition in stress across the material interfaces, leading to improved structural integrity of the electrode.

The nanoscale size of the scoop is also vital since nanostructures are less prone to cracking than bulk materials, according to Koratkar.
'/>"/>

Contact: Michael Mullaney
mullam@rpi.edu
518-276-6161
Rensselaer Polytechnic Institute
Source:Eurekalert  

Page: 1 2 3

Related biology technology :

1. Gene Discovery Could Increase Value of Non-Food Crops for Industries Outside of Agriculture
2. Designer probiotics could reduce obesity
3. Study Shows Cardiovascular Deaths in Europe Could Be Prevented
4. Transparent conductive material could lead to power-generating windows
5. Pivoting hooks of graphenes chemical cousin could revolutionize work of electron microscopes
6. Advance could change modern electronics
7. Water could hold answer to graphene nanoelectronics
8. Lastest graphene research could lead to improvements in bluetooth headsets and other devices
9. Semiconductor could turn heat into computing power
10. Novel electronic biosensing technology could facilitate new era of personalized medicine
11. Magical BEANs: New nano-sized particles could provide mega-sized data storage
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
'Nanoscoops' could spark new generation of electric automobile batteries
(Date:8/21/2014)... including DESY scientists has observed tiny quantum vortices in ... the journal Science that the exotic vortices ... It is the first time that the quantum vortices, ... what is known as superfluid helium, have been detected ... says Andrey Vilesov of the University of Southern California, ...
(Date:8/21/2014)... August 21, 2014 ... has announced the addition of the  "Global ... their offering.       (Logo: http://photos.prnewswire.com/prnh/20130307/600769) ... therapy, is a means of replacing hormones ... the body. This type of therapy is ...
(Date:8/21/2014)... 21, 2014 Telomere Biosciences, LLC (Telomere ... "TELO-20 for Dogs" with Telomerase Activation Complex ... the world for dogs. Telomeres are the protective ... the body. A wealth of ground-breaking research by ... Science and Aging, including Nobel laureates, has demonstrated ...
(Date:8/21/2014)... Mass. , Aug. 21, 2014  Decision ... Brazil and ... The uptake of several newly approved agents, the ... this indication and the launch of emerging biologics ... markets. In particular, the emerging IL-5 inhibitors will ...
Breaking Biology Technology:Scientists observe quantum vortices in cold helium droplets 2Global Hormone Replacement Therapy Market 2014-2018: Key Vendors are Actavis, Bayer, Merck & Co, Novartis and Novo Nordisk 2Telomere Biosciences Announces: TELO-20 for Dogs, the World's First Telomere-Lengthening Supplement for Dogs, to Promote Healthy Aging and Longevity 2Telomere Biosciences Announces: TELO-20 for Dogs, the World's First Telomere-Lengthening Supplement for Dogs, to Promote Healthy Aging and Longevity 3Asthma Agents Currently Face a Suboptimal Coverage Environment in Brazil and Mexico, and as the Treatment Armamentarium Expands, Competitiveness Will Further Intensify 2Asthma Agents Currently Face a Suboptimal Coverage Environment in Brazil and Mexico, and as the Treatment Armamentarium Expands, Competitiveness Will Further Intensify 3
... Technologies, Inc., a leading,provider of innovative services ... today that Shabbir Anik, Ph.D.,will join the ... Officer. Dr.,Anik, the former President of Pharmaceutical ... Althea,s expansion of its product development,clinical trial ...
... advanced and powerful electron microscope on the planetcapable of ... for Electron Microscopy at McMaster University. , "We are ... of such a high calibre," says Gianluigi Botton, director ... Materials Science and Engineering, and the project,s leader. ...
... N.C., Oct. 20 With limited information ... support of Continuing,Medical Education activities, pharmaceutical, biotechnology ... understand the value of CME,support and strategies ... practitioner behaviors and patient outcomes. In the ...
Cached Biology Technology:Althea Technologies Appoints Dr. Shabbir Anik as Chief Executive Officer 2McMaster University unveils world's most advanced microscope 2Bio-Pharma Industry Improves Patient Outcomes Through Continuing Medical Education (CME) 2
(Date:8/22/2014)... French . NAIROBI (22 ... soils looming as a major threat to food security across ... the last five years, 1.7 million African farmers in 13 ... hectares and helped them double or even triple crop yields. ... in Africa (AGRA) focuses on intensive efforts initiated five years ...
(Date:8/22/2014)... in basic and clinical research and technological advances, ... complex offensive spanning multiple fronts. , Work happening ... help find new and more selective therapies for ... a specific enzyme overexpressed in certain cancersand they ... tumours. , Chemistry professor Christopher Cairo and his ...
(Date:8/22/2014)... is a multifunctional enzyme that localizes ... neuroprotective and cholesterol-synthesizing activities. DHCR24 overexpression ... amyloid β deposition. Dr. Xiuli Lu ... China constructed two recombinant adenoviruses (Ad-rSYN1-DHCR24-myc ... specifically in neuronal cells. They also ...
Breaking Biology News(10 mins):Effort to confront Africa's soil health crisis helps millions of farmers triple yields 2Effort to confront Africa's soil health crisis helps millions of farmers triple yields 3Effort to confront Africa's soil health crisis helps millions of farmers triple yields 4New enzyme targets for selective cancer therapies 2New enzyme targets for selective cancer therapies 3
... paleoclimate history by NASA,s Goddard Institute for Space Studies ... climate changes this century, including multiple meters of sea ... By looking at how the Earth,s climate responded to ... question raised by ongoing human-caused climate change: "What is ...
... Mellon University,s Roberto R. Gil and Rongchao Jin ... of infinitesimal gold nanoparticles, which could advance the ... drug development. Their approach offers a ... nanoparticles because it can determine whether the nanoparticles ...
... New York, NYDecember 7, 2011Thanks to a new ... be able to diagnose in their offices non-periodic ... Non-periodic arrhythmias include atrial and ventricular fibrillation, which ... can in some cases be life-threatening. ...
Cached Biology News:Paleoclimate record points toward potential rapid climate changes 2Paleoclimate record points toward potential rapid climate changes 3Paleoclimate record points toward potential rapid climate changes 4Carnegie Mellon researchers use NMR to determine whether gold nanoparticles exhibit 'handedness' 2Carnegie Mellon researchers use NMR to determine whether gold nanoparticles exhibit 'handedness' 3New Columbia engineering technique diagnoses non-periodic arrhythmias in a single heartbeat 2
... first instrument engineered to match the speed ... thousands of research centers worldwide. It uses ... are ideally suited for high-speed temperature cycling ... high surface-area-to-volume ratio. ,By combining glass capillary ...
... Antibody is a mouse monoclonal antibody ... 26 kDa glutathione-S-transferase (GST) domain from ... is suitable for detecting fusion proteins ... E. coli , yeast, mammalian, and ...
... at 470 nm; includes interface cable to S2000; ... into rack or desktop boxes The ... LED that produces either pulsed or continuous output ... for fluorescence measurements. The source is designed for ...
Sterile, Cell culture tested...
Biology Products: